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(11) | EP 2 797 034 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Event analyzer and computer-readable storage medium |
| (57) An event analyzer includes an event log collection module configured to collect an
event log, an event log storage module configured to convert the event log into an
event matrix and to store the event matrix, an event occurrence-order determination
module configured to determine occurrenee-order of device events based on the event
matrix, a Bayesian network generation module configured to specify device events serving
as parent node candidates, to calculate evaluation values corresponding to each specified
parent node candidate at a virtual device event obtained by shifting the device event
serving as a processing object each unit time, and to select an device event serving
as a parent node together with a shift amount, and an analysis module configured to
output an device event estimated as a cause of an device event to be analyzed, or
an device event estimated to occur later based on the shift amount.
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